ABSTRACT
Video games are relevant yet ill-analysed objects of a post-modern culture that embodies values of uncertainty and indeterminacy. In the quality of interactive works, video games maintain a strong tendency towards formal discontinuity. The operation of music soundtracks in computer games can find constructive references in the use of indeterminacy procedures by composers such as Cage, Stockhausen and Boulez, who managed to incorporate chance to the composition and performance of their works.